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RD DXIL Disassembly simplify the getelementr ptr demangle code

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Similar to DXBC::BasicDemangle() which can't be used because the pointer string is an escaped string
This commit is contained in:
Jake Turner
2024-05-29 07:00:36 +01:00
parent 44fdde8b3e
commit 886d7f6eda
1 changed files with 7 additions and 24 deletions
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renderdoc/driver/shaders/dxil/dxil_disassemble.cpp
+7 -24
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@@ -4080,32 +4080,15 @@ void Program::MakeRDDisassemblyString(const DXBC::Reflection *reflection)
// arg[0] : ptr
rdcstr ptrStr = ArgToString(inst.args[0], false);
// Try to de-mangle the pointer name
// @"\01?shared_pos@@3PAY0BC@$$CAMA.1dim" -> shared_pos
// Take the string between first alphabetical character and last
// alphanumeric character or "_"
start = 0;
int strEnd = (int)ptrStr.size();
while(start < strEnd)
// Simple demangle take string between first "?" and next "@"
int nameStart = ptrStr.indexOf('?');
if(nameStart > 0)
{
if(isalpha(ptrStr[start]))
break;
++start;
nameStart++;
int nameEnd = ptrStr.indexOf('@', nameStart);
if(nameEnd > nameStart)
ptrStr = ptrStr.substr(nameStart, nameEnd - nameStart);
}
if(start < strEnd)
{
end = start + 1;
while(end < strEnd)
{
char c = ptrStr[end];
if(!isalnum(c) && c != '_')
break;
++end;
}
}
if(end > start)
ptrStr = ptrStr.substr(start, end - start);
lineStr += ptrStr;
// arg[1] : index 0
bool first = true;